Keller



(No Model.)

A. SAVOYE-KELLER.

v STEM WINDING WATCH. .No. 274,613. Patented MaInZT, 1883.

UNITED STATES PATENT OFFICE.

I ALEXANDRE SAVOYE-KELLER, OF LOOLE, S\VITZERLAND.

STEM-WINDING WATCH.

SPECIFICATION forming part of Letters Patent No. 274,613, dated March 27, 1883. Application filed November 29, 1882. (N0 model.)

To all whom it may concern Be it known that I, ALEXANDRE SAVOYE- KELLER, of Locle, Canton Nenohatel, Switzerland, have invented anew and useful Improvement in Watch-Movements,of which the following is a specification.

Figure 1 is a face view of my improved watch-movements; Fig. 2, a back view of the same; Figs. 3 and. 4, detail views thereof, hereinafter more fully referred to.

This invention relates to improvements in the construction of the parts that pertain to the winding mechanism of a watch; and it consists in combining the ratchet-pawl of that winding mechanism, which is made in one piece with the spring that holds it against the wheel, with a covering-plate of a certain kind, and with a tubular pivot, bridge, and fastenin g-sorews, as hereinafter more fully described.

In the drawings, A represents the springbarrel or spring-box of a watch, and B is the pawl that engages with the ratchet or other teeth of said spring barrel or box. This pawl B, which in Fig. 3 is shown more fully in inverted plan view, is made in one piece with a spring, 0, and is pivoted to the framing of the watch by a tubular pivot, a, which extends also through the cap-plate or covering-plate D. This covering-plate is fastened in place by three screws, I) b, as shown in Fig. 1. The end of the spring part 0 of the pawl bears against a block-like projection, 01, that is fastened to the inner side of the covering-plate D. It will be seen from Fig. 1 that the pawl B, made in one piece with the spring 0, is placed under the curved plate D and held in place by the same. The toothed portion of the pawl projects from beyond the edge of the plate D. The plate D is set into a recess of or upon the 11] ain bridge E, that supports it, and its surface is preferably flush with that of said bridge, so that thus no displacement of said plate D, and consequently none of the pivot of the pawl B, is possible.

I olaim-- In a watch, the combination, with the pawl B, made in one piece with the spring 0, ofthe covering-plate D, having projection d, tubular pivot a, bridge E, and fastening-screws 1), sub stantially as herein shown and described.

The above specification of my invention signed by me this 15th day of October, 1881.

ALEXANDRE SAVOYE-KELLER.

Witnesses GULEs NOBEL, FERD. PRIOHARD. 

